package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.dto.PasswordEditDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.PathVariable;

import java.time.LocalDateTime;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

//   员工登录
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {


        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO, employee);
        employee.setStatus(StatusConstant.ENABLE);
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
        //TODO 后边需要设置创建者id
        employee.setCreateUser(BaseContext.getCurrentId());
        employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.save(employee);
    }

    @Override
    public PageResult empList(EmployeePageQueryDTO employeePageQueryDTO) {

        PageHelper.startPage(employeePageQueryDTO.getPage(), employeePageQueryDTO.getPageSize());
        Page<Employee> page = employeeMapper.empList(employeePageQueryDTO);
        return new PageResult(page.getTotal(),page.getResult());
    }

    @Override
    public void setStatus(Integer status,Integer id) {
        employeeMapper.setStatus( status, id);
    }

    @Override
    public Employee getEmp( Integer id) {
       Employee employee=employeeMapper.getEmp(id);
       return  employee;
    }

    @Override
    public void updateEmp(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
//        employee.setUpdateTime(LocalDateTime.now());
        employeeMapper.updateEmp(employee);
    }

    @Override
    public void editPassword(PasswordEditDTO passwordEditDTO) {
        passwordEditDTO.setNewPassword(DigestUtils.md5DigestAsHex(passwordEditDTO.getNewPassword().getBytes()));
        passwordEditDTO.setOldPassword(DigestUtils.md5DigestAsHex(passwordEditDTO.getOldPassword().getBytes()));
        employeeMapper.editPassword(passwordEditDTO);
    }


}
